To get an insider’s view of how Langur monkeys live, a “spy monkey” was placed among them. Although it looked like a baby Langur monkey, the spy monkey is actually just a robot with a spy cam inside it. But when the monkeys begin to believe that the baby monkey has died, their sorrow and compassion is evident. Watch to see how they comfort each other.
Watch next video Woman leaves secure life to become a trapeze artist
